14 May 2010: The Japan-Caribbean Community (CARICOM) Friendship and Cooperation Fund has approved a US$267,466 project to assess the impacts of climate change on the energy sector in CARICOM countries.

12 May 2010: In a joint letter to worldwide organizations, the Directors of the Global Climate Observing System (GCOS) and the World Climate Research Programme (WCRP) are asking for support to international expert groups involved in scientific analysis, inter-comparison and review of climate data records.

May 2010: The European Environment Agency (EEA) has published the sixth issue in its series of '10 messages for 2010' to celebrate the International Year of Biodiversity, which focuses on urban ecosystems.

21 May 2010: The 14th meeting of the Subsidiary Body on Scientific, Technical and Technological Advice (SBSTTA 14) to the Convention on Biological Diversity (CBD) convened from 10-21 May 2010, in Nairobi, Kenya. SBSTTA 14 adopted 18 recommendations to be considered by the Conference of the Parties (COP) to the CBD. Climate-related issues are addressed in the recommendations on: mountain biodiversity; inland waters; marine and coastal biodiversity, including ocean fertilization; protected areas; biodiversity and climate change; biofuels and biodiversity; and forest biodiversity.

20 May 2010: The Global Environment Facility Evaluation Office (GEFEO), in collaboration with the Swedish International Cooperation Agency (SIDA) and the Switzerland Federal Office for the Environment (FOEN), has launched a new website dedicated to the evaluation of climate change and international development projects and programmes.

20 May 2010: The UNFCCC Secretariat has a published a compilation of pledges for emission reductions and related assumptions (FCCC/KP/AWG/2010/INF.1) provided by parties to date and the associated emission reductions. The document provides the background information from parties on pledges and related assumptions, an overview of these pledges, and estimates prepared by the Secretariat of the emission reductions for Annex I Parties that are Parties to the Kyoto Protocol individually and in aggregate, in accordance with pledges.

19 May 2010: The first session of the Preparatory Committee (PrepCom) for the 2012 UN Conference on Sustainable Development (UNCSD) convened from 17-19 May 2010, at UN Headquarters in New York, US. The Preparatory Committee (PrepCom) took up both substantive and procedural matters.

May 2010: The UN Office of the High Commissioner for Human Rights (UN OHCHR) has released its annual report, which covers activities and major results achieved in 2009 concerning the implementation of the 2008-2009 Strategic Management Plan. The report notes that OHCHR's support contributed to increased recognition and acceptance of the human rights implications of climate change and the linkages between human rights and environment.

19 May 2010: The UN Economic Commission for Europe (UNECE) has released a publication titled "Good Practice Guidance on the Sustainable Mobilization of Wood in Europe," which provides an overview of measures countries can take to mobilize their wood resources to help Europe reach its renewable energy objective of 20% by 2020.